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(11)

EP 2 659 534 A2

(12)

(88) Date of publication A3: 04.10.2012 (43) Date of publication: 06.11.2013 Bulletin 2013/45 (21) Application number: 11852360.4 (22) Date of filing: 30.12.2011

(51) International Patent Classification (IPC):  H01M 2/26(2006.01) H01M 2/34(2006.01) H01M 10/50(2006.01) (86) International application number: PCT/KR2011/010358 (87) International publication number: WO 2012/091509 (05.07.2012 Gazette 2012/27)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 30.12.2010 KR 20100139669 (71) Applicant: SK Innovation Co., Ltd. Seoul 110-110 (KR)	(72) Inventors: LEE, Won Jun Daejeon 305-755 (KR) HAM, Deok Hoon Daejeon 302-732 (KR) KIM, Seung Bum Suwon-si Gyeonggi-do 443-746 (KR) LIM, Dong Joo Anyang-si Gyeonggi-do 431-762 (KR) KIM, Sang Hyuk Seoul 110-110 (KR) (74) Representative: Banzer, Hans-Jörg  Kraus & Weisert Patent- und Rechtsanwälte Thomas-Wimmer-Ring 15 80539 München 80539 München (DE)